On Fri, 18 Jan 2019, at 03:08, Stefan Schaeckeler wrote:
> From: Stefan M Schaeckeler <sschaeck@xxxxxxxxx>
>
> Add support for EDAC on the Aspeed AST2500 SoC.
>
> Signed-off-by: Stefan M Schaeckeler <sschaeck@xxxxxxxxx>
Reviewed-by: Andrew Jeffery <andrew@xxxxxxxx>
> ---
> .../bindings/edac/aspeed-sdram-edac.txt | 25 +++++++++++++++++++
> 1 file changed, 25 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/edac/aspeed-sdram-edac.txt
>
> diff --git a/Documentation/devicetree/bindings/edac/aspeed-sdram-
> edac.txt b/Documentation/devicetree/bindings/edac/aspeed-sdram-edac.txt
> new file mode 100644
> index 000000000000..6a0f3d90d682
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/edac/aspeed-sdram-edac.txt
> @@ -0,0 +1,25 @@
> +Aspeed AST2500 SoC EDAC node
> +
> +The Aspeed AST2500 SoC supports DDR3 and DDR4 memory with and without
> ECC (error
> +correction check).
> +
> +The memory controller supports SECDED (single bit error correction,
> double bit
> +error detection) and single bit error auto scrubbing by reserving 8
> bits for
> +every 64 bit word (effectively reducing available memory to 8/9).
> +
> +Note, the bootloader must configure ECC mode in the memory controller.
> +
> +
> +Required properties:
> +- compatible: should be "aspeed,ast2500-sdram-edac"
> +- reg: sdram controller register set should be <0x1e6e0000
> 0x174>
> +- interrupts: should be AVIC interrupt #0
> +
> +
> +Example:
> +
> + edac: sdram@1e6e0000 {
> + compatible = "aspeed,ast2500-sdram-edac";
> + reg = <0x1e6e0000 0x174>;
> + interrupts = <0>;
> + };
> --
> 2.19.1
>
